Carbonating apparatus.



H. M. SMITH. CARBONATING APPARATUS.

APPLIGATION'HLBD SEPT. 2, 1909.

980,447. Patented Jan.8,1911j.

s SHEETS-SHEET 1.

H. M. SMITH.

GARBONATING APPARATUS. APPLIGATION FILED SEPT. 2, 1909.

980,447. v Patented Jan. 3, M911.

3 SHEETS-SHEET 2 H. M. SMITH.

GARBONATING APPARATUS. APPLIoAToN FILED SEPT. 2, 1909.

980,44?, Patented Jan. 3, 1911.

3 SHEETS-SHEET 34 HORACE UNITED, STwENT Omron.

COMPANY, OF CHICAGO, ILLINO Appiigaunnalea .if f a K M K TeaM/whom itfmay'concem: c

Be it known that I, Hormon M. SMITH, a citizen of 4the United States, Y' residing at Chicago7 in the county of! @ook and State ot" Illinois, have invented; .newffand "useful Improyfements in `Carbonating` Apparatus, of which the following specification.

In vcarbonating apparatus'it hasbee'n the general practice heretofore to saturate the waterwith thd'gas by spraying or by ragitation. i

is discharged in a .more or less inely divided state througha gas-space in a mixing chamber in the bottom or' which the supply'fof.

saturated water is maintained. The water is exposed only oncev totheA gas while it is falling through the gas space and in practice it has been found impossible to obtain a highly charged water according. to this system and a considerable quantity of gas has beenpractically lost.

According to the agitation system the' gas is discharged into the water in the bottom of the mixing chamber and an agitator operates by Apower in the water to keep it in a state ot' agitation vso that it will become saturated with the gas.' According to this method a considerable quantity of gas escapes from the water into the gas :space above the water and difficulty .has also beeng eX- perienced 1n highly charging the water.

Better results have been obtainedby com# la more-completeian'd thorough saturation of the water with 'the and to maintain a supply of water in the mixing chamber more highly charged with gas than has been possible heretofore. I v

A further object ot the invention is to maintain a circulationY through vthe water Vot the gas which collects 1n the space .above' the water andthe'rcby bring this gas re neatedly into contact with the water lso 'that it will be taken up by a more thorough saturation and highly charge the water.'

M.Y siviirH, or-CHICAGO', Immo specification of Leiters september a' 599.1,-

According to the sprayusysteni the l'water IS.- AssieitOR ,To 'T-1E LIJD lvlCAB.115i IG is, A- comoRnmon-.or illinois i i.

` A further object of the ini7 duce the power required for operating a carbonating apparatus by dispensing with the agitator andrnaintaining a circulation of the surplus gas through the water in :a simple and novel manner.-y And a stili `'further object of the invention' is toi operate the water vinotor and 'the gas' circulating pumpby Aone set of Valves 'which admit.

waterto and exhaust water from the power pistons of the motor and pump andthereby lsimplify-the construction and arrangement' of parts and reduce the operate'the valves. .l have illustrated one embodiment of the invention 'in i in which-4 i Figure 4l is 4a sectional View of a carbonating Fig. Zis a top'rplanview, ofthe apparatus. Fig. 3 isf af detail enlarged View of the' vgas valve. FigQlis a'horizontal sectional View o n the .linea-#4 of Fig. Il 4and showing the gaspump. Fig. is a horizontal sectional View on the line 5- ofFigzl, showing the gas discharge coil. Fig` 6 isa vertical sectional View on vthe line G46 ot Fig. 4;' 'p y In thel drawings, l' designates a mixing tank which is adapted to hold the supply 2 power required to drawn ott'` from theV bottom of the 'tank through theL pipe 3. The space lin the mix ingtankaboi'e the water therein constitutes the gas chamber in which the gas not taken up by the water collects. The tank may be provided with a water gage 5 andany other attachments desirable in apparatus of this character and the tank may be made 'in' any suitable manner adapted for thepurposes herein settorth. 1

` Various means may be employed or`supplying waterto the vmining tank and the water may be admitted to the lower part. or

to the upper part of -the` tank. .prefer, however, to admit the water :at the topofm the tank through. a pipe '6i and provide a '.,Spraying vdevice 6 at the discharge end of the pipe-for spraying'themwater lnto "the tank through the gas chamber 2t. This construction is preferredto that infwhic'h the ,l

water,iscadniittedto the bottom of the tank because zin/opportunity is atl'orded the water: to take upasoroe of the gas while it '1s falling entio'nis to. re-

fthe f accompanying drawings,

apparatus embodying 'the invent-ion.

` through vthe gas-chamber. "I have used'both constructions, however, and find them both satisfactory but l believe that the spraying system embodied with my invention as herein shown and described insiiues better resuits, especially"'where the discharged water is rapidly drawn oil' from the mixing tank.

ln the drawings I have shown the pressure multiplying water motor forming the subject matter of my application Serial No. 515,781 :tor supplying water to the mixing tank and as this water motor forms no part of the present invention it will not be necessary to describe it in detail. 'lhe water motor comprises a power cylinder 7 mounted on a base S which islsupported on a bed S' suitably mounted en top of the mixing tank. This bed has a trough 8 to receive drippings from the water motor, and a drain pipe 8. A high pressure cylinder 9 is centrally disposed at one end of the power cylinder and communicates therewith. A differential piston is arranged to operate within these cylinders and it comprises the power-piston 10 and the hiefh pressure pis` ton 11, these two pistons being connected by a stem 12 and each provided with cup leathers' 10 and 11 respectively. A connection 13 is made fast to thecouter end of the high pressure cylinder 9 andis provided with a passage 13 which communicates at one end with the high pressure cylinder and has two branches 14,- 15, at its other end. A. suction valve 16 is arranged in branch 14 and a delivery valve 17 is arranged in branch 15. rlhe connection has an inlet 18 to which a water pipe 1S is attached and an outlet 19 to which is attached the water pipe which discharges into the mixing tank. The admissionand supply of waterto and from the power cylinder is accomplished by a differential piston valve 25 operating in a.

casing 2O made fast to that end ofthe power cylinder opposite the hie'h pressure cyhnder. The casing has a main water inlet opening 26 which communicates through a passage 2T with the chamber 21 which is located between the two pistons of the motor valve. The inlet opening 2G also communicates through a nipple 28 with the pipe 18 which supplies water to the high pressure cylin` der 9. r

The supply of" water to and exhaust from the power cylinder 7 is regulated-v and controlled by a pilot valve- 29 which operates in a valve chamber 30 in the casing 20 below the motor valve and connected with the chamber 21 by a passage/13. Thewater motor is operated by water under city pressure or any other pressure.l The liiglrg. pressure cylinder 9 and the chamber 21 between the two pistons of the dillerential piston 25 of the motor valve are ill'ed with water and vthis valve is actuated by the water to admit yater 'from the. chamber 21 through the passage 13 and thence to the power cylinder behind the piston 10. 4Thus the dillerential piston 10, 11, of the pump is actuated and the water in the high pressure cylinder 9 is forced out through the connection 13 and pipe (S to the mixing tank. lrovision made tor shifting the pilot valve to the left (Fig. l.) as the piston 1() approaches the end ot its forward stroke and the water which has operated the motor valve is permitted to escape so that valve may resume its initial position. Then the water behind the piston 10 in the power cylinder is permitted to escape and the pressure ot' the supply water opens the .valve 16, fills the high pressure chamber 9 and returns the pistons 10 and 1l to initial position. This brief explanation of the operation of the water motor willbe suliicient for a general understanding thereotl and reference may be had to my concurrent application aforesaid for a more detailed description of the construction and explanation ofthe operation. The water supply to the water motor may be regulated automatically by any of the means commonly employed in the art for regulating the water supply, or by other suitable means, or it'may be regulated by hand.

Gas is admitted to the mixing tank from a Suitable source of supply through a pipe 5G which may be connected-to the mixing chamber above or below the level of the water therein and a valve 5T (Fig. 3) is pret eably located in this gas pipe adjacent to the tank to control the supply of gas to the tank.

` As heretofore stated, more or less gas which has notl been taken up by the water in any of the saturation methods heretofore employed will collect in the mixing tank above the level of the water. My invention contemplates the repeated circulation ot' this surplus gas through the water in the mixing tank and thus by repeatedly bringing the gas into contact with the water obtaining a more thorough and complete saturation ot' 110- the water with the gas. Different means may be, employed for producing this circulation ot' the surplus gas. In the drawings I have'illustrated a pum) which is operated by water controlled by tl which admit the water to and exhau'st it from the power piston of the water motor. I have. shownl the gas pump mounted for convenience 'on a base- 58 which is fastened in any suitable manner 'on top of the water 120 ie Same set of valves level [30 of the .water in the tank. and yitsother end is branched at ("5 and connected with the connections (to. which Aare provided with valves 6T' and coinn'uijnicate with the inlet ports GO ot'` the cylinder 59. A pipe coil 68 is located within the mixing tank at thebottom thereof and this coil is provided at the bottom with av plurality ot' pert'orationslGQ. `The pipe coil through which the surplus gas from above the water in 'the mixing tank is distributed in a finely divided state in the water at the. bottom of the mixing tank is .connected by a pipe 'T0 with theconnections 7-1 which are provided with valves 72 and communicate with the outlet ports of the cylinder 59. As the piston G2 is reciprocated in the cylinder `59 the gas vis sucked into' the cylinder from the gas chamber 4 above the water in the mixing tank and delivered through the pipe to the .distributing coil from which it is discharged torise in a finely divided state through the water in the tank.-

The piston 62 may be operated by any suitable means: but'.r as before stated. I prefer to operate it by power derived from the water which is employed in operating the water motor. For this reason I provide a differential piston 73 comprising a large power piston T4 and a small piston T5 which operate in cylinders T6, TT, mounted on the base 58. The stem 63 of the piston 62 is connected to the differential piston 73. A pipe TS is connected to the cylinder 76 at TS behind the piston 7l and to the pipe 18' or the nipple 2S of the water pump in any suitable manner to admit water from the supply whieh operates the water motor to the cylinder T6. A pipe T9 1s connected at T9 to the cylinder T6 in front of the piston 7a and to the passage 48.' As the piston 74 is of greater area than the 'piston 75 the inflow of water from the source of supply through pipe 7S into cylinder TG will move the dierential piston 73 tothe right in Fig. l and thus move the piston G2 in the cylinder 59 .in the same direction. This occurs at the same time that wa ter from the source of' supply is admitted behind the piston 1G of' the water motor. Then the water behind the piston 10 of the water motor is exhausted through the passage 1S, as heretofore explained7 the water behind the piston 7% will also be exhausted through the pipe T9 and the passage 4S. Thus these two differential pistons of the water motor and gas pump are operated simultaneously, jatcr is taken from the same source of supply for their operation and thewadmission 'and exhaust of water to both of the power pistons is controlled by one setof valves heretofore described as comprising a part of the water motor. I have found this means for producing a repeated circulation through the water in the mixing tank of the surplus gas which collects in the gas chamber above the water in the mixing-tank to bevery satisfactory in practicerbut other meansinay be eniployedif desired.- f f My inventiony repeatedly distributes the surplus .gas in a finely divided state through the water in the mixing tank so Athat opportunity Vis repeatedly afforded for` saturating or charginglthewater with this gas and v While the decreaseofthe quantity of gas rei quired .for charging lthe water 1s.of material importance the principal result sought is to charge the Water as highly as possible with the gas at a minimum expenditure-of power. My invention dispenses entirely with the agitator which has frequentlybeen used as a means for mixing the Water and gas in a carbonating machine and saves'the power required for` operating l'the agitator. Myl invention also enables me to more thoroughly charge the Water Wit-ligas than. is possible with the spray 'or the agitator systems, separately or combined, heretofore em.l ployed because it provides for repeatedly distributing the gas through the water so that the water has repeated opportunity for taking up the gas, and it` does not break up and agitate the water as an agitator Would and dwhlchtends to liberate a considerabl quantity of gas from the water. f

My invention is simple in construction and operation, inexpensive to make and inst-all, and it is capable of being embodied in a variety of' forms as may be desired. My invention also enables the use of a small car.- bonating apparatus in places Where a large apparatus has heretofore been used because it is capable fit-maintaining a constant`supply of highly charged water in small Volume and this is particularly truewhere automatic means are employed for regulating the supply of Water.

lVhen an agitator is used the mean level of water in the mixing tank should be mainf tained close to the 'height ot' the shaft of the y agitator' in order that the agitator may attain its maximum efiect but with my invention it isnot necessary to maintain the Water level at any specified height and thus I am enabled to reduce the size of the mixing tank materially. By'I eliminating the agitator and the power required for operating it the costo'f manufacture and installation of a carbonating machine is very materially reduced.

By' surplus gas in this application I mean the gas which does not combine with the water but collects in the gas chamber above the water in the mixing tank.

lfvfhat I claim and desire to secure by Lettersr Patent is:

l. In a carbonating apparat-us, the combination of a closed mixing tank, means for supplying gas to the tank, a Water motor for supplying Water to the tank, a gas pump connected with the tank above and below the level of the water therein to deliver the surplus gas which collects in the tank above the Water to the tank below the water level,

a power piston in the water motor, a power piston in the gas pump, and means for operating both of said pistons by water from the same source of supply.

2. In a carbonating apparatus, the combination of a closed mixing tank, means for supplying gas to the tank, a water motor for supplying Water to the tank, a gas pump `Connected with the tank above and below 3. In a carbonating apparatus, the conibi- 4 nation of a closed'mlxmg tank, a reclprocatv ai, @adam ing pump for supplying Water to the tank,

means for supplying gas to the tank, a re ciprocating gas pump, means actuated by the Water pump for controlling the motor fluid Which actuates both the Water pump and the gas pump, so that said pumps operate synchronously, a pipe connecting the gas pump with the tank above the level of the contained vliquid therein, a perforated coil submerged in the liquid in the'tank, and a pipe connecting said coil with the gas pump wherebyv the surplus 'gas above the liquid in the tank may be 'forced by the gas pump into the submerged coil in the bottom of the tank Where it will escape through the perforations in the coil and be disseminated through the liquid in the tank.

HORACE M. SMITH. Witnesses:

WM. O. BELT, M. A. KIDDIE. 

